technology: the correct use of tools.
it should make our lives easier and or have fum
it should improve our lives
ergonomics: designing objects that help people with their jobs, environment, sports, safety, or involves people.
system: an organised wayu to achieve a goal
a system includes 4 parts
1. input
2. output.
3. process
4. feedback
trade offs: all systems have trade offs
1 intended outcome (good)
2 unintended outcome (bad)
the difference between science and tech.
1 science focues on the natural world
2 tech. focuses on making things easier
inventions & inovations:
invention: a new product
inovation: an improvement
tech. should use resources efficiently
the 4 R's
reduce
reuse
renew
recycle
the history of tech.
agricultural - up to 1700's
industrial - 1700's to 1950's
information - 1950' to now
resources we use in tech
natural resources not man made.
syntehetic resources: man made